+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8ayn | ||||||||||||
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タイトル | Resting state GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand LY3130481 | ||||||||||||
要素 |
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キーワード | MEMBRANE PROTEIN / AMPAR / ion channels / neurotransmission | ||||||||||||
機能・相同性 | 機能・相同性情報 Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration ...Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / response to sucrose / proximal dendrite / neurotransmitter receptor transport, postsynaptic endosome to lysosome / L-type voltage-gated calcium channel complex / LGI-ADAM interactions / myosin V binding / Trafficking of AMPA receptors / neuron spine / cellular response to dsRNA / cellular response to L-glutamate / regulation of AMPA receptor activity / conditioned place preference / neurotransmitter receptor internalization / protein phosphatase 2B binding / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / postsynaptic neurotransmitter receptor diffusion trapping / dendritic spine membrane / Synaptic adhesion-like molecules / long-term synaptic depression / response to morphine / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / protein kinase A binding / peptide hormone receptor binding / response to psychosocial stress / spine synapse / dendritic spine neck / spinal cord development / dendritic spine head / neuronal cell body membrane / Activation of AMPA receptors / perisynaptic space / behavioral response to pain / AMPA glutamate receptor activity / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / channel regulator activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / cellular response to organic cyclic compound / regulation of postsynaptic membrane neurotransmitter receptor levels / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / excitatory synapse / adenylate cyclase binding / ionotropic glutamate receptor complex / regulation of postsynaptic membrane potential / positive regulation of excitatory postsynaptic potential / cellular response to glycine / asymmetric synapse / postsynaptic density, intracellular component / calcium channel regulator activity / regulation of receptor recycling / neuronal action potential / G-protein alpha-subunit binding / Unblocking of NMDA receptors, glutamate binding and activation / voltage-gated calcium channel activity / glutamate receptor binding / positive regulation of synaptic transmission / response to electrical stimulus / long-term memory / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / response to fungicide / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / regulation of synaptic transmission, glutamatergic / ionotropic glutamate receptor binding / somatodendritic compartment / dendrite membrane / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / response to nutrient levels / SNARE binding / dendritic shaft / response to cocaine / synaptic transmission, glutamatergic / synaptic membrane / long-term synaptic potentiation / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / cellular response to amino acid stimulus 類似検索 - 分子機能 | ||||||||||||
生物種 | Rattus norvegicus (ドブネズミ) | ||||||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.8 Å | ||||||||||||
データ登録者 | Zhang, D. / Lape, R. / Shaikh, S. / Kohegyi, B. / Watson, J.F. / Cais, O. / Nakagawa, T. / Greger, I.H. | ||||||||||||
資金援助 | 英国, 米国, 3件
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引用 | ジャーナル: Nat Commun / 年: 2023 タイトル: Modulatory mechanisms of TARP γ8-selective AMPA receptor therapeutics. 著者: Danyang Zhang / Remigijus Lape / Saher A Shaikh / Bianka K Kohegyi / Jake F Watson / Ondrej Cais / Terunaga Nakagawa / Ingo H Greger / 要旨: AMPA glutamate receptors (AMPARs) mediate excitatory neurotransmission throughout the brain. Their signalling is uniquely diversified by brain region-specific auxiliary subunits, providing an ...AMPA glutamate receptors (AMPARs) mediate excitatory neurotransmission throughout the brain. Their signalling is uniquely diversified by brain region-specific auxiliary subunits, providing an opportunity for the development of selective therapeutics. AMPARs associated with TARP γ8 are enriched in the hippocampus, and are targets of emerging anti-epileptic drugs. To understand their therapeutic activity, we determined cryo-EM structures of the GluA1/2-γ8 receptor associated with three potent, chemically diverse ligands. We find that despite sharing a lipid-exposed and water-accessible binding pocket, drug action is differentially affected by binding-site mutants. Together with patch-clamp recordings and MD simulations we also demonstrate that ligand-triggered reorganisation of the AMPAR-TARP interface contributes to modulation. Unexpectedly, one ligand (JNJ-61432059) acts bifunctionally, negatively affecting GluA1 but exerting positive modulatory action on GluA2-containing AMPARs, in a TARP stoichiometry-dependent manner. These results further illuminate the action of TARPs, demonstrate the sensitive balance between positive and negative modulatory action, and provide a mechanistic platform for development of both positive and negative selective AMPAR modulators. | ||||||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8ayn.cif.gz | 404.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8ayn.ent.gz | 300.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8ayn.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ay/8ayn ftp://data.pdbj.org/pub/pdb/validation_reports/ay/8ayn | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Isoform Flip of Glutamate receptor ... , 2種, 4分子 BDCA
#1: タンパク質 | 分子量: 96247.055 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Gria2, Glur2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19491 #3: タンパク質 | 分子量: 102661.930 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Gria1, Glur1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P19490 |
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-タンパク質 , 1種, 2分子 IJ
#2: タンパク質 | 分子量: 43576.004 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Rattus norvegicus (ドブネズミ) / 遺伝子: Cacng8 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q8VHW5 |
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-非ポリマー , 5種, 28分子
#4: 化合物 | ChemComp-ZK1 / {[ #5: 化合物 | ChemComp-OLC / ( #6: 化合物 | ChemComp-PLM / #7: 化合物 | ChemComp-POV / ( #8: 化合物 | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand LY3130481 タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.18.2 / カテゴリ: モデル精密化 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 2.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 583178 / 対称性のタイプ: POINT |